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Bathymetry from the ETOPO1 Global Relief Model downloaded from: http://www.ngdc.noaa.gov/mgg/global/global.html
Sumatran orangutan distribution shapefile prepared by Singleton and Wich and based on Wich et al. 2008 with unpublished data added.
Forest layer interpreted by PanEco/ YEL, 2010 from Landsat 5 TM, 2009 and Landsat ETM 7 filled, 2010.
Forest status for Aceh shown on map “Peta Penunjukan
Kawasan Hutan dan Perairan Propinsi NAD, 1:2,000,000. SK170/Kpts-II/2000” . Forest status for N.Sumatra shown on map accompanying “Peta Penunjukan Kawasan Hutan Propinsi Sumatera Utara, 1:5,000,000. SK 44/Kpts-II/2004”. Both maps available for download from Ministry of Forestry website (http://www.dephut.go.id).
Uploaded on Wednesday 01 Feb 2012
Riccardo Pravettoni, UNEP/GRID-Arendal
Most Sumatran orangutan habitat is protected by Indonesian law. The government has created a very comprehensive system of functional forest categories, and institutions responsible for managing its forests. Some areas remain highly threatened, however, including the Batang Toru Forest (production forest), and the Tripa Swamp Forest (not part of the formal forest estate).